1911] Teller, Fossils from the Palaeozoic Formations. 205 



Clorinda ventricosa (Hall.) Niagara (Sil.) 



Pentamerus ventricosa, Geol. Surv. Wis., Rept. of Prog., Hall, 1861, 



p. 2. 

 Pentamerus chicagoensis, Mem. Bost. Soc. of Nat. Hist., Winchell 



and Marcy, 1865, Vol. 1, p. 94, pi. 2, fig. 11. 

 Pentamerus (Pentamerella) ventricosus, Twentieth Ann. Kept. N. 



Y. State Cab. of Nat. Hist., Hall, 1867, p. 374, pi. 13, (4), 



figs. 18-21. 

 Pentamerus ventricosus, Geol. of Wis., Whitfield, 1882, p. 291, pi. 16, 



figs. 11-13. 



Barrandella ventricosa, Pal. of New York., Hall and Clarke, 



1893, Vol. 8, Pt. 2, p. 243, pi. 71, figs. 4-10, pi. 84, fig. 46. 

 Clorinda ventricosa, U. S. Geol. Surv., Schuchert, 1897, Bull. 87, 



p. 185. 

 Locality — Waukesha, Wis. 

 Types — Am. Mus. of Nat. Hist. 



Conchidium crassiradiatum (McChesney.) Niagara (Sil.) 



Pentamerus crassoradius, Description. New Pal. Fossils., McChes- 

 ney, 1861, p. 87. 



Conchidium crassiradiatum, U. S. Geol. Surv., Schuchert. 1897, 

 Bull. 87, p. 185. 



Locality — Milwaukee, Wis. 



Types — Chicago Acad, of Science. Destroyed by fire. 



Conchidium greenii Hall and Clarke. Niagara (Sil.) 



Pal. of New York., Hall and Clarke. 1894. Vol. 8, Pt. 2, p. 368, 



pi. 66, figs. 20-22. 

 Locality — Wauwatosa, Wis. 

 Types — Univ. of Chicago. 



Conchidium multicostatum (Hall.) Niagara (Sil.) 



Pentamerus mult ico status, Geol. Rept. Wis., Hall, 1860, p. 1, and 



p. 436. 

 Pentamerus multicostatns, Twentieth Ann. Rept. N. Y. State Cab. 



of Nat. Hist., Hall, 1867, p. 373, pi. 13, (4), figs. 22, 23, 24. 

 Conchidium multicostatum, Pal. of N. Y., Hall and Clarke, 1894, 



Vol, 8, Pt. 2, p. 231, pi. 64, fig. 6, and pi. 66. fig. 10. 

 Locality — Waukesha, Wis. 

 Types — New York State Museum. 



